His upper body was clothed in a dark-coloured hooded top. According to police, witnesses describe the man as being in his 20s or 30s, with collar length scruffy hair and riding a dark-coloured bicycle.

Anyone with information on the identity of the mystery cyclist can contact the police via email at 101@dc.police.uk, quoting reference 825, or by telephoning Crimestoppers on 0800 555 111.